ELIOT : NUDIBKANCHS OF NEW ZEALAND. 331 



processes at the corners. Its margins are not expanded at the sides, 

 and it is prolonged into a short flat tail behind the body. 



The integuments are very thin, and allow the follicles of the 

 hermaphrodite gland to be seen through the foot, sides, and back. 

 These follicles are white and fill up almost the whole of the internal 

 cavity, and it is only with difficulty that the alimentary canal and 

 other organs can be distinguished between them. The buccal mass is 

 small, of the shape usual in the genus, and without jaws. In the 

 specimens dissected the radula was consistently composed of 5 teeth 

 in the ascending portion, 8 in the descending, and about 10 in the 

 sac, still retaining a spiral arrangement, though somewhat in disorder. 

 The teeth are, as usual, in the Ascoglossa : they are rather large, 

 colourless, spoon-shaped, indented in the back, and not denticulate in 

 any part. No dilatation of the alimentary canal sufficient to be called 

 a stomach was found. The bases of the cerata are connected by 

 colourless tubes from which they rise, and which run between them 

 under the dorsal integuments, being presumably part of the hepatic 

 system. 



The central nervous system is small, and apparently consists of 

 seven ganglia, arranged as usual in the Elysioidea. The spermatotheca 

 is large, full, and irregularly pear-shaped. In spite of a careful 

 search, no spine was found in the male genitalia. The mucus gland 

 is large aud diffused among the other organs. 



This species is allied to the Stiliger belluhis (r= St. Marice) of 

 European waters, but differs in having more cerata and a ridge-like 

 prolongation of the pericardium visible on the back, perhaps also in 

 the absence of a spine in the genitalia. 



Facelina sp. 



One specimen from Dunedin Harbour, of a uniform dull olive, 

 as preserved. Long and narrow (length 13, breadth 3 mm.), with a 

 tapering tail and curved tentacular projections on the anterior margin 

 of the foot. Oral tentacles very large and stout ; rliinophores stout, 

 deeply ringed. Cerata sparse and small. Many have been lost, but 

 they seem to have been set in four groups. Radula : a single series of 

 18 teeth of the usual horse-shoe shape, with a long prominent central 

 cusp and four very distinct denticles on either side of it. Jaws decayed, 

 but apparently bearing a single row of irregular and not very clear 

 denticles. Penis armed with numerous small prominences or spines. 



This seems to be a typical Facelina. The dentition agrees with 

 F. Stearnsi, recorded from California, but without more data as to the 

 colour and appearance of the living animal identification is impossible. 



Antiopella Novozealandica, n.sp. 



One specimen. It is stoutly built (length 14, breadth 6, height 

 4 mm.), and greyish in colour. Down the middle of the back, 

 both before and behind the rhinophores, runs a purplish stripe which 

 becomes dissolved into a multitude of dots posteriorly. In the middle 

 of this stripe, just behind the rhinophores, is a lozenge-shaped. 



